Wire fabric



C. E. PINK WIRE FABRIC Oct. 4, 1932.

Filed July 51. 1931 INVENTOR ATTORNEYS Patented Oct. 4, 1932 CLARENCE E.PINK, CAMBRIDGE, MARYLAND WIRE FABRIC Application filed July 31, 1931.Serial No. 554,371.

This invention relates to conveyor belts 9r aprons constructed fromspirally woven metallic fabric, heretofore found necessary in themanufacture to be constructed from alternate sections of rightandleft-hand coils to prevent creeping of the belt or apron laterally whenpassing over pulleys or drums, as a belt or apron constructed fromspirals all extending in one direction will 10 creep off a pulley ordrum, due to each spiral when coming in contact with the curved surfaceof a pulley or drum receiving a screw action which is transmitted to thepreceding coil by the coils hinging one upon the other, and the presentinvention has for the pri mary object, the provision of means forpreventing the belt or apron from creeping {when constructed of coilsall extending in the same direction and which permits the belt or apronto be more. readily constructed and at a much less expense andeliminates the heretofore necessary fasteners or ties for connecting thesections of the belt. X

Another object of this invention is the provision of rods forming hingesbetween the coils, so that when the coils adjust them-, selves to thecurvature of the pulley or drum they will not exert a screw action uponthe preceding coil consequently permitting the belt or apron to travelin a straight course without lateral creeping.

A further object of this'invention is the provision of the rods soarranged that they will provide an additional selvage within the usualouter selvage of the fabric to prevent the fabric from fraying orseparating shogld the outer selvage become torn or dama e With these andother objects in view, this inventionconsists in certain novel featuresof construction, combination and arrangement of parts to be hereinaftermore fully described and claimed;

For a complete understanding of my invention, reference is to be had tothe following description and accompanying draw ing, in which Figural isa plan view, illustrating a woven wire fabric constructed in accordancewith myinvention;

fied arrangement of hinge rods wherein said rods are located in endwiserelation; and

Figure 6 is a fragmentary sectional view, illustrating the coils of wirefulcruming or hinging on the rods when passing over a curved surface. V

Referring in detail to the drawing, the

numeral 1 indicates a woven-wire fabric used 05 in the construction ofconveyor belts or aprons and includes either right-hand or left-handcoiled strands of wire 2 woven one within the other to form the fabricand having the ends of the wires bent to form eyes or loops 3 7 adaptedto interlock with each other to provide outer selvages 4 to each sideedge of the fabric. By referring to Figure 1 it will be seen that informing the selvages 4, the ends of pairs of coiled wires are bent overeach other to provide the interlocking eyes or loops. The fabric thusformed contains flexibility by one coiled wire hinging relative to theother for following a curved surface, such as the periphery-of a drum orpulley 5 as shown in Figure 5. Each coiled wire when adjusting itself tothe drum or pulley it hinges relative'and upon the preceding coiledwire, transmitting to the latter a screw action which will cause agradual creeping of the 35 fabric laterally of the drum or pulley, andto prevent such action, rods 6 are provided 1 and on which certain ofthe coiled wires hinge,

preventing said wires from contacting or hinging upon each other andthereby transmitting to each other the screw action; Each rod 6 includesparallel leg portions 7 connected at one of their ends by a bightportion 8. The rods when assembled in the fabric are reversely arrangedand each leg portion of each rod forms a hinge between a pair of. coiledwires- The rods are placed in the coiled wires prior to the forming ofthe outer selvages and when the latter are formed the rods will be heldagainst endwise movement structed from a slngle length of material bentupon itself to provide parallel leg portions 11 connected at each end bybight portions 12 with the ends of the material located adjacent one ofthe bight portions. As shown in Figure 4 the rod 13 is similarlyconstructed to the rod 10 except the ends of material are locatedintermediate the ends of one of the leg portlons 14.

, In the illustration set forth by Figure 5 the rods 15 are arranged inpairs and in endwise relation to each other and are constructedsimilarly t0 the rods 6.

A belt or apron constructed from fabric made in accordance withtheforegoing will travel in a straight course without lateral creepingwhen passingover a curved surface of a pulley or drum, as each coiledwire when adjustingitself to the curvature of the pulley or drum willhinge on a rod and not on the preceding coiled wire, consequentlyprevent ing one coiled wire from transmitting to the preceding coiledwire, the screw action developed in each coiled Wire whenadjusting'itself to the curvature of the pulley or drum. While I haveshown and described the preferred embodiment of myinvention, itiwill .beunderstood that minor changes in construction, combination andarrangement of parts may be made without departing from the spiritandscope ofmy invention, as claimed.

Having thus described my invention, what I claim is:

1 11 A woven wire fabric for conveyor belts, comprismg coiled wires onewoven w1th1n the other to form a continuous flexible fabric and havingthe ends of pairs of said wires pivotally connected, hinge rods for thefabric and each including connected parallel portions extending throughthe coil of one wire of each pair, and with one parallel portionextending through the coil of the wire of the adjacent pair' of Wires,whereby hinges are provided throughout the length of the fabric with thecoiled wiresheld from hingin on A v each other and with every other wire0 the fabr1c hinging on a parallel portion of a rod.

2. A woven wire fabric for conveyor belts,

comprising coiled wires one woven within the other to form a continuousflexible fabric and fabric with the coiled wires held from hinging oneach other and with every other wire In testimony whereof I aflix mysignature.

CLARENCE E. rINK.

. having the ends of pairs of said wires inter-"f looped with each otherto hinge the pairs of wires together and forming selvages to the edgesof the fabric,-hinge rods for the fabric and each including connectedparallel portions extending through the coil of one wire of each 'pairofvwires, and with one parallel portion extending through the coil ofthe wire of the adjacent pair of wires, whereby hinges are providedthroughout the length of the

